The 44-year-old Favor Hamilton lives in Madison, Wis. The Smoking Gun said she has been working for the last year for an escort service.

Soon after the story appeared online, Hamilton released a series of tweets saying in part that she was "drawn to escorting in large part because it provided many coping mechanisms for me when I was going through a very challenging time with my marriage and my life."

Golden Athletes of the London 2012 Games

A middle-distance runner, Favor Hamilton competed for the U.S. at the Olympics in 1992, 1996 and 2000 but did not win a medal. She won seven U.S. national titles.